13287142 has 16 divisors (see below), whose sum is σ = 22101264. Its totient is φ = 5940000.

The previous prime is 13287139. The next prime is 13287143. The reversal of 13287142 is 24178231.

It is a self number, because there is not a number n which added to its sum of digits gives 13287142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13287143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3609 + ... + 6292.

It is an arithmetic number, because the mean of its divisors is an integer number (1381329).

Almost surely, 2^13287142 is an apocalyptic number.

13287142 is a deficient number, since it is larger than the sum of its proper divisors (8814122).

13287142 is a wasteful number, since it uses less digits than its factorization.

13287142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9975.

The product of its digits is 2688, while the sum is 28.

The square root of 13287142 is about 3645.1532203736. The cubic root of 13287142 is about 236.8520740686.

The spelling of 13287142 in words is "thirteen million, two hundred eighty-seven thousand, one hundred forty-two".